Assignee
UNIV HUNAN SCIENCE & TECHNOLOGY
CN·37 granted patents·14 pending applications·166 citations·filing 2018–2025
Top patents by PatentIndex Score
51 records- 0195US10804830B1Method for controlling speed regulation system of asynchronous motor based on buck-boost matrix converterUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2020·Granted Oct 13, 2020·12 cites·6 claims
- 0293US12130401B1Landslide hazard monitoring and early warning method and system based on real 3DUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2023·Granted Oct 29, 2024·141 cites·4 claims
- 0390US11041344B1Wireline coring recovery system of a seafloor drilling rig and method of using sameUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2020·Granted Jun 22, 2021·3 cites·9 claims
- 0486US11505997B2Horizontal drilling machine with an in-situ detection deviceUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2021·Granted Nov 22, 2022·2 cites·11 claims
- 0583US11264933B2Sensorless control method and apparatus for a three-phase switched reluctance motorUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2021·Granted Mar 1, 2022·2 cites·10 claims
- 0680US10936770B2Method for adaptively adjusting control parameters of BBMC-based speed regulation system of asynchronous motorUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2020·Granted Mar 2, 2021·1 cites·2 claims
- 0777US11812732B2Suction sampler system for in situ collection of deep-sea floor organisms and method of using sameUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2021·Granted Nov 14, 2023·1 cites·9 claims
- 0875US10927606B2Sediment core-drilling process for submarine wire-line coring drill rigUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2019·Granted Feb 23, 2021·2 cites·5 claims
- 0975US10704350B2Process for drilling natural gas hydrates with submersible core drilling rig using pressure wirelineUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2019·Granted Jul 7, 2020·2 cites·8 claims
- 1063US2024327282A1Method of preparing alkali-activated cement by stepwise calcination with sodium chlorideUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2024·Application pending·0 cites
- 1163US2024360034A1Method for preparing general-purpose cementUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2024·Application pending·0 cites
- 1263US2025350376A1Counter-rotating blade-type underwater low-frequency sound-emitting deviceUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2025·Application pending·0 cites
- 1360US2025390087A1Fault diagnosis method for transmission chain based on joint entropy enhanced sparse learning using zero sequence currentUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2025·Application pending·0 cites
- 1458US12372438B2Full-sea depth multi-point in-situ sampler, and sampling and transfer method using the sameUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2023·Granted Jul 29, 2025·0 cites·13 claims
- 1558US2025153237A1Early warning method for fatigue damage state of tie rod in diameter expanding machine based on oil pressure of power cylinderUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2025·Application pending·0 cites
- 1657US12480852B2Pretension and tensile impact test apparatus capable of simulating full-sea-depth environmentUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2023·Granted Nov 25, 2025·0 cites·6 claims
- 1757US2025154055A1Method for preparing general-purpose cement by chlorination roasting of aluminosilicatesUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2025·Application pending·0 cites
- 1857US2025060502A1Method for measuring spectrum parameters of formation outcrop and rock massUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2024·Application pending·0 cites
- 1955US12436060B2Testing device for simulating frictional wear behaviors of threaded joint of drill pipe under turbid seafloor environmentUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2023·Granted Oct 7, 2025·0 cites·7 claims
- 2055US11846744B2Electrical prospecting signal transmission device capable of suppressing electromagnetic coupling interference and electrical prospecting signal transmission method using sameUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2022·Granted Dec 19, 2023·0 cites·9 claims
- 2155US2025085328A1Precise fault location apparatus and method for collector line in onshore wind farmUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2024·Application pending·0 cites
- 2255US2025067896A1Transmission device and method for multi-frequency equal-amplitude non-harmonic electrical prospecting signalUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2024·Application pending·0 cites
- 2354US11983472B2Method for identifying fragile lines in power grids based on electrical betweennessUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2023·Granted May 14, 2024·0 cites·9 claims
- 2453US12084933B2Multi-point drilling and sampling device applied to seafloor tracked vehicleUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2023·Granted Sep 10, 2024·0 cites·7 claims
- 2553US11774336B2Friction and wear testing platform capable of simulating high-pressure, silt-containing and turbid submarine environmentUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2022·Granted Oct 3, 2023·0 cites·10 claims
- 2652US11824411B2Optimization design method for noise reduction of AC traction motorUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2021·Granted Nov 21, 2023·0 cites·8 claims
- 2751US11740275B2Method for intelligent fault detection and location of power distribution networkUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2021·Granted Aug 29, 2023·0 cites·5 claims
- 2851US2022084732A1PMSM Demagnetization Fault Diagnosis Method Based on Fuzzy Intelligent Learning of Torque SignalsUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2021·Application pending·0 cites
- 2949US11799353B2Denoising optimization method for AC traction motor by chamfering stator tooth shoulder with inscribed arcUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2021·Granted Oct 24, 2023·0 cites·2 claims
- 3049US2025070767A1Signal transmission device capable of shortening turn-off time of controlled source in electromagnetic methodUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2024·Application pending·0 cites
- 3148US12181382B2Micro core-drilling testing system for high-pressure environmentUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2022·Granted Dec 31, 2024·0 cites·10 claims
- 3248US11840935B2Method and system for controlling vibration of rotor in turboshaft engineUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2022·Granted Dec 12, 2023·0 cites·20 claims
- 3347US11762122B2Device and method for reducing turn-off time of transient electromagnetic transmitting signalUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2022·Granted Sep 19, 2023·0 cites·7 claims
- 3446US2022236441A1High-density integrated magnetic receiving antenna for electromagnetic explorationUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2022·Application pending·0 cites
- 3543US11408227B2Horizontal drilling machine with impact deviceUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2021·Granted Aug 9, 2022·0 cites·9 claims
- 3643US2022255409A1Noise reduction method by cutting a corner of a tooth shoulder of a stator of an ac traction motor based on inscribed arcUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2021·Application pending·0 cites
- 3742US10988898B2Method for preparing active carbon-based special synthetic paperUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2018·Granted Apr 27, 2021·0 cites·8 claims
- 3841US11408239B2Long-distance core drilling method suitable for a horizontal geological core drilling rigUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2021·Granted Aug 9, 2022·0 cites·5 claims
- 3941US11201542B2Method for determining stability range of control parameters of buck-boost converter based on segmented delay feedback controlUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2020·Granted Dec 14, 2021·0 cites·6 claims
- 4041US11015294B2Method for preparing titanium dioxide-based synthetic paperUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2018·Granted May 25, 2021·0 cites·8 claims
- 4141US2021240874A1Method for optimizing structured mesh generation for a thermal analysis model of a rotor bar of an ac motorUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2021·Application pending·0 cites
- 4240US11326398B2Portable seafloor drill rig for submersible for multi-point core drillingUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2021·Granted May 10, 2022·0 cites·12 claims
- 4340US11196374B2Modeling method of stator winding air gap for temperature field analysis of AC traction motorUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2020·Granted Dec 7, 2021·0 cites·9 claims
- 4440US10947800B2Pressure-retaining cap screwing and unscrewing device for marine natural gas hydrate pressure-retaining rock-core barrelUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2020·Granted Mar 16, 2021·0 cites·5 claims
- 4540US10915692B2Method for self-adaptively optimizing parameters of a main circuit in a BBMC based on a current ratingUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2020·Granted Feb 9, 2021·0 cites·6 claims
- 4640US10849325B2Intelligent dehumidification device for hot air circulation baking systemUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2018·Granted Dec 1, 2020·0 cites·4 claims
- 4739US11275191B2Method and system of magnetotelluric synchronous detection and real-time inversionUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2018·Granted Mar 15, 2022·0 cites·4 claims
- 4838US11067480B2Half-car floating device based on load feedback and half-car position tracking methodUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2018·Granted Jul 20, 2021·0 cites·9 claims
- 4937US12523792B2Detection device for high-frequency pseudo-random (PN) spread spectrum (SS) coded sequence signal of shallow geologic body and method using the sameUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2023·Granted Jan 13, 2026·0 cites·5 claims
- 5036US11371298B2Support device for rotation of high-capacity and compact drill pipe storage unit of seabed drilling rig in lying stateUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2020·Granted Jun 28, 2022·0 cites·4 claims
Showing the top 50 of 51 patent records by PatentIndex Score.
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